Kobayashi S, Mukuno K, Ishikawa S, Tasaki Y
Ann Neurol. 1985 Feb;17(2):141-5. doi: 10.1002/ana.410170207.
Visuospatial contrast sensitivity was determined by the Arden grating chart in 23 patients with cerebral infarctions involving the primary visual cortex or visual association cortex. Subjects were classified into three groups according to their lesions: I, 6 patients with unilateral medial occipital or occipitotemporal lesions; II, 6 patients with left lateral parieto-occipital lesions; and III, 11 patients with right lateral parieto-occipital lesions. Contrast sensitivity was markedly reduced in Group III, especially in patients having hemispatial agnosia. Group I patients with hemispatial agnosia showed almost normal contrast sensitivity. Spatial contrast sensitivity appears to be more affected when the lesion has an influence on the nondominant lateral parieto-occipital cortex.
采用阿登光栅图对23例累及初级视皮层或视觉联合皮层的脑梗死患者进行视觉空间对比敏感度测定。根据病变情况将受试者分为三组：I组，6例单侧枕叶内侧或枕颞叶病变患者；II组，6例左侧顶枕叶病变患者；III组，11例右侧顶枕叶病变患者。III组对比敏感度明显降低，尤其是患有半侧空间失认症的患者。I组患有半侧空间失认症的患者对比敏感度几乎正常。当病变影响非优势侧顶枕叶皮层时，空间对比敏感度似乎受影响更大。
